Improvement in sole-edge-trimming tools



J. F. CUNNINGHAM. Sole-Edge Trimming-T001;

No.217.344. Patentedluly 8,1879.

Inv'e nior'.

NJ'ETERS, FNOTOJJTHOGRAPIIER. WASHINGTON D 114 UNITED STATES PATENT OFFICE.

JOHN F. CUNNINGHAM, OF OANDIA, NEW HAMPSHIRE.

IMPROVEMENT IN SOLE-EDGE-TRIMMING TOOLS.

Specification forming part of Letters Patent No. 217,344, dated July 8, 1879; application filed June 5, 1879.

, ment consists as follows: first, in the combination of main and auxiliary clamps and a clamp-screw thereto, as described, with the guard and the throat-gage applied to them, as

represented; second, in the combination of an adjustable edge-gage applied to the flange or main clamp, and arranged as described, with its flange, with the auxiliary clamp and its holding-screw, and with the guard and the throat-gage arranged with and applied to such clamps, as set forth.

In the drawings, A denotes the blade of a shoemakers knife as applied to and projecting from its handle B in the usual manner. This blade extends, as shown, between and beyond the auxiliary clamp G and the main or guard-flanged clamp D. The said main clamp is a plate in the form of a segment of a circle, and has flanges a I) projecting in opposite directions from it at its chord, one of such flanges being grooved or provided with a lip, c, to overlap the other or auxiliary clamp at its chord. A clamp-screw, d, goes through the clamp G and screws into the clamp D, and serves with the lip to fasten the two clamps to the blade of the knife, such blade at its end entering. a groove in the guard E, formed as shown. This guard is to prevent the knifeblade, while paring a shoe-sole edge, from cutting into the adjacent upper leather.

The shank of the guard is placed against the lip c, and is held to the clamp O by a knife-blade. The gage G also has a slot, h, in

it to receive a clamp-screw, t, which, screwed into the flanged clamp, serves to confine the gage at any desirable distance within the range of its motion from the guard.

In using the trimmer the outer end of the gage G is borne against the bottom of the sole, while the cutting-edge of the blade is drawn along the edge of the sole, so as to trim 0r pare it.

With the clamp, gages, and guard constructed and applied as set forth, and constituting with their screws and the knife-blade a sole-edge trimmer, the said gages and guard may easily and firmly be fixed in position and to a knife-blade and adjusted thereto, as may be required.

What I claim as my invention, for use with a knife as described, is as follows:

1. The combination of the main clamp,

' flanged and grooved, or provided with a lip,

as described, and the auxiliary clamp and its fastening-screw, with the guard and the throatgage arranged with and applied to them as set forth.

2. The combination of the main clamp, flanged and grooved, or provided with a lip,

as described, and the auxiliary clamp and its fastening-screw, with the guard-throat gage and adjustable edge-gage arranged with and applied to them, as set forth.

' JOHN F. CUNNINGHAM.

Witnesses:

MARY E. NUTTING, JOHN H. NUTTING. 

